National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rain and Flooding Concerns in Hawaii; Severe Weather this Weekend in the Plains; Pacific Storm in the West

A storm system near the Hawaiian Islands is expected to bring periods of heavy rainfall, strong winds, and isolated strong to severe thunderstorms through Friday. Several rounds of severe thunderstorms are forecast to impact parts of the Great Plains into the Midwest this weekend into next week. Moderate to heavy rainfall and high elevation snow is expected this weekend over California and Oregon. Read More >

Hazardous Weather Conditions

Current conditions at

Guam International Airport (PGUM)

Lat: 13.48°NLon: 144.8°EElev: 304ft.

A Few Clouds

81°F

27°C

Humidity 77%
Wind Speed NE 10 mph
Barometer 29.80 in (1008.3 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 10 Apr 7:54 pm ChST
Extended Forecast for

Agat GU

High Surf Advisory until April 12, 06:00pm
Click here for hazard details and duration
High Surf Advisory
  •  
    High Surf Advisory until April 12, 06:00pm

    NOW until 6:00pm Sun

    High Surf Advisory

  • Tonight

    Low: 77 °F

    Isolated
    Showers

  • Saturday

    Saturday: Isolated showers. Mostly sunny, with a high near 87. Breezy, with a north northeast wind 22 to 24 mph, with gusts as high as 31 mph.

    High: 87 °F

    Isolated
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Isolated showers. Partly cloudy, with a low around 76. Breezy, with a northeast wind 24 to 26 mph, with gusts as high as 34 mph.

    Low: 76 °F

    Isolated
    Showers and
    Breezy

  • Sunday

    Sunday: Scattered showers and thunderstorms. Partly sunny, with a high near 85. Breezy, with a northeast wind 26 to 29 mph, with gusts as high as 37 mph. Chance of precipitation is 40%.

    High: 85 °F

    Scattered
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 78. Windy, with a northeast wind 29 to 32 mph, with gusts as high as 41 mph. Chance of precipitation is 40%.

    Low: 78 °F

    Scattered
    Showers and
    Windy

  • Monday

    Monday: Scattered showers and thunderstorms. Partly sunny, with a high near 84. Windy. Chance of precipitation is 40%.

    High: 84 °F

    Scattered
    Showers and
    Windy

  • Monday Night

    Monday Night: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 79. Windy. Chance of precipitation is 70%.

    Low: 79 °F

    Windy.
    Scattered
    Showers then
    Heavy Rain

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm, mainly before 8am, then rain and possibly a thunderstorm after 8am. Some of the storms could produce heavy rainfall. Cloudy, with a high near 84. Windy.

    High: 84 °F

    Heavy Rain
    and Windy

Detailed Forecast

Tonight
Isolated showers. Partly cloudy, with a low around 77. Northeast wind around 21 mph, with gusts as high as 28 mph.
Saturday
Isolated showers. Mostly sunny, with a high near 87. Breezy, with a north northeast wind 22 to 24 mph, with gusts as high as 31 mph.
Saturday Night
Isolated showers. Partly cloudy, with a low around 76. Breezy, with a northeast wind 24 to 26 mph, with gusts as high as 34 mph.
Sunday
Scattered showers and thunderstorms. Partly sunny, with a high near 85. Breezy, with a northeast wind 26 to 29 mph, with gusts as high as 37 mph. Chance of precipitation is 40%.
Sunday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 78. Windy, with a northeast wind 29 to 32 mph, with gusts as high as 41 mph. Chance of precipitation is 40%.
Monday
Scattered showers and thunderstorms. Partly sunny, with a high near 84. Windy. Chance of precipitation is 40%.
Monday Night
Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 79. Windy. Chance of precipitation is 70%.
Tuesday
Showers and possibly a thunderstorm, mainly before 8am, then rain and possibly a thunderstorm after 8am. Some of the storms could produce heavy rainfall. Cloudy, with a high near 84. Windy.
Tuesday Night
Rain and possibly a thunderstorm before 10pm, then showers likely and possibly a thunderstorm between 10pm and 2am, then scattered showers and thunderstorms after 2am. Some of the storms could produce heavy rainfall. Cloudy, with a low around 79. Windy.
Wednesday
Scattered showers and thunderstorms. Mostly cloudy, with a high near 84. Windy.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 79. Breezy.
Thursday
Partly sunny, with a high near 86. Breezy.
Thursday Night
Partly cloudy, with a low around 78.
Friday
Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Agat GU
 13.38°N 144.67°E
Last Update:
6:08 pm ChST Apr 10, 2026
Forecast Valid:
8pm ChST Apr 10, 2026-6pm ChST Apr 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation